APPARATUS, MATERIAL, AM> KKAliKNTS. 



{c) Koch's solution. 



Concentrated alcoholic solution of methylene-blue 



Ten per cent, potash solution . 



Distilled water . . 200 



(d) Loffler's solution. 



Concentrated alcoholic solution of methylene-blue 30 

 Solution of potash, 1 to 10,000 



25. Methyl- violet. 



(a) Concentrated alcoholic solution. 



{b) Aqueous solution. 



Methyl-violet . 



i AH 

 Distilled water 



(c) Koch's solution. 

 Aniline water . 



Alcoholic solution of methyl-violet 

 Absolute alcohol 



26. Neelsen's solution. 



Dissolve f uchsine . 



In alcohol 



Add a 5 per cent, watery solution of carbc 



27. Nitric acid, pure. 



28. Orseille (Wedl). 



Dissolve pure ammonia-free orseille i ^ 



Absolute alcohol 



Acetic acid . ^Q 



Distilled water 



until a dark red liquid results. 



29. Picric acid. 



(a) Concentrated alcoholic solution. 



(b) Saturated aqueous solution. 



30. Picro-carmine (Ranvier). ^ 



Carmine . ID 



Distilled water 3 



acid 



